CN106341838A - Transmission power determining method and device, and vehicle-mounted equipment - Google Patents

Abstract

An embodiment of the invention provides a transmission power determining method, a transmission power determining device and vehicle-mounted equipment. The transmission power determining method comprises the steps that: a node detects an object, and determines a first detection state of the object; the node obtains a plurality of second detection states of the object determined by a plurality of other nodes in a region where the node locates, and a plurality of positions of the plurality of other nodes; and target transmission power of the node is determined at least according to the first detection state, the plurality of second detection states, the plurality of positions of the plurality of other nodes and a position of the node. The embodiment of the invention provides a scheme for determining the transmission power.

Description

Transmission power determines method, device and mobile unit

Technical field

The invention relates to communication technical field, more particularly, to a kind of transmission power determines method, device and mobile unit.

Background technology

Needing often to communicate between each node in a communication network, such as car networking, however, for each node, to be communicated with other nodes using great transmission power, being a problem needing to consider.

Content of the invention

In view of this, a purpose of the embodiment of the present application is to provide a kind of scheme determining transmission power.

For achieving the above object, according to the embodiment of the present application in a first aspect, provide a kind of transmission power determine method, comprising:

One node detects to an object, determines the first detection state of described object；

Described node obtains multiple second detection states of the described object that the multiple other nodes in the region that described node is located determine and multiple positions of the plurality of other node；

According at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of node and the position of described node, determine the objective emission power of described node.

In conjunction with first aspect, in the first possible implementation of first aspect, described according at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of the node and position of described node, determine the objective emission power of described node, comprising:

According at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of node and the position of described node, determine many performance parameters under multiple available launch power for the described node；

According at least to the performance requirement of many performance parameters under multiple available launch power for the described node and described node, determine described objective emission power.

Any of the above-described kind of possible implementation in conjunction with first aspect or first aspect, in the possible implementation of the second of first aspect, with the position of described node closer to the second detection state of determining of other nodes detect that the impact to performance parameter of the state difference of state is bigger with described first.

In conjunction with any of the above-described kind of possible implementation of first aspect or first aspect, in the third possible implementation of first aspect, described performance parameter is parameter of consistency, and described performance requirement includes: the higher limit of parameter of consistency.

Any of the above-described kind of possible implementation in conjunction with first aspect or first aspect, in the 4th kind of possible implementation of first aspect, described according at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of the node and position of described node, determine many performance parameters under multiple available launch power for the described node, comprising:

According to the plurality of other multiple positions of node and the position of described node, determine multiple distances of the plurality of other node and described node；

For each available launch power in the plurality of available launch power, according at least to the plurality of distance, determine at least one other node corresponding with described available launch power in the plurality of other node；According at least to described first at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node, determine parameter of consistency under described available launch power for the described node.

Any of the above-described kind of possible implementation in conjunction with first aspect or first aspect, in the 5th kind of possible implementation of first aspect, described at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine parameter of consistency under described available launch power for the described node, comprising:

At least one second detection state, at least one distance of described at least one other node and the uniformity distance coefficient determining according at least to the described first detection state, described at least one other node, determines parameter of consistency under described available launch power for the described node.

In conjunction with any of the above-described kind of possible implementation of first aspect or first aspect, in the 6th kind of possible implementation of first aspect, described uniformity distance coefficient is relevant with the intended application of described node.

Any of the above-described kind of possible implementation in conjunction with first aspect or first aspect, in the 7th kind of possible implementation of first aspect, described many performance parameters according at least to described node under multiple available launch power and the performance requirement of described node, determine described objective emission power, comprising:

Determine that described objective emission power is the available launch power that in the plurality of available launch power, corresponding parameter of consistency is not higher than described higher limit and maximum.

In conjunction with any of the above-described kind of possible implementation of first aspect or first aspect, in the 8th kind of possible implementation of first aspect, described higher limit is relevant with the intended application of described node.

In conjunction with any of the above-described kind of possible implementation of first aspect or first aspect, in the 9th kind of possible implementation of first aspect, described performance parameter is communication net benefits, and described performance requirement is to require the net benefits highest that communicates.

Any of the above-described kind of possible implementation in conjunction with first aspect or first aspect, in the tenth kind of possible implementation of first aspect, described according at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of the node and position of described node, determine many performance parameters under multiple available launch power for the described node, comprising:

According to the plurality of other multiple positions of node and the position of described node, determine multiple distances of the plurality of other node and described node；

For each available launch power in the plurality of available launch power, according at least to the plurality of distance, determine at least one other node corresponding with described available launch power in the plurality of other node；According at least to described first at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node, determine communication net benefits under described available launch power for the described node.

Any of the above-described kind of possible implementation in conjunction with first aspect or first aspect, in a kind of the tenth possible implementation of first aspect, described at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine communication net benefits under described available launch power for the described node, comprising:

According at least to described first at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node, determine communication benefit under described available launch power for the described node；

Determine the corresponding communication overhead of described available launch power；

Determine the difference that described node is communication benefit under described available launch power for described node communication overhead corresponding with described available launch power in the communication net benefits under described available launch power.

Any of the above-described kind of possible implementation in conjunction with first aspect or first aspect, in the 12nd kind of possible implementation of first aspect, described at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine communication benefit under described available launch power for the described node, comprising:

At least one second detection state, at least one distance of described at least one other node and the benefit coefficient of described node determining according at least to the described first detection state, described at least one other node, determines communication benefit under described available launch power for the described node.

In conjunction with any of the above-described kind of possible implementation of first aspect or first aspect, in the 13rd kind of possible implementation of first aspect, described benefit coefficient is relevant with the intended application of described node.

Any of the above-described kind of possible implementation in conjunction with first aspect or first aspect, in the 14th kind of possible implementation of first aspect, described at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine communication benefit under described available launch power for the described node, comprising:

According at least to described first at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node, determine parameter of consistency under described available launch power for the described node；

According at least to parameter of consistency under described available launch power for the described node, determine communication benefit under described available launch power for the described node.

Any of the above-described kind of possible implementation in conjunction with first aspect or first aspect, in the 15th kind of possible implementation of first aspect, described many performance parameters according at least to described node under multiple available launch power and the performance requirement of described node, determine described objective emission power, comprising:

Determine that described objective emission power is corresponding communication net benefits highest available launch power in the plurality of available launch power.

In conjunction with any of the above-described kind of possible implementation of first aspect or first aspect, in the 16th kind of possible implementation of first aspect, a described node detects to an object, determines the first detection state of described object, comprising:

It is activated in response to the described intended application on described node, described node detects to an object, determine the first detection state of described object.

Any of the above-described kind of possible implementation in conjunction with first aspect or first aspect, in the 17th kind of possible implementation of first aspect, described node obtains multiple second detection states of the described object that the multiple other nodes in the region that described node is located determine and multiple positions of the plurality of other node, comprising:

Described node is asked for the detection of described object with maximum transmission power broadcast；

The plurality of second detection state and multiple positions of the plurality of other node that reception the plurality of other node each returns.

Any of the above-described kind of possible implementation in conjunction with first aspect or first aspect, in the 18th kind of possible implementation of first aspect, described node obtains multiple second detection states of the described object that the multiple other nodes in the region that described node is located determine and multiple positions of the plurality of other node, comprising:

Described node subscribes to the status information of all other node in described region to a server；

Receive multiple second detection states of described object of the plurality of other nodes determination of described server return and multiple positions of the plurality of other node.

In conjunction with any of the above-described kind of possible implementation of first aspect or first aspect, in the 19th kind of possible implementation of first aspect, methods described also includes:

The transmission power of described node is set to described objective emission power by described node.

In conjunction with any of the above-described kind of possible implementation of first aspect or first aspect, in the 20th kind of possible implementation of first aspect, described node and the plurality of other node are respectively positioned in car networking.

In conjunction with any of the above-described kind of possible implementation of first aspect or first aspect, in a kind of the 20th possible implementation of first aspect, described region is centered on the position of described node.

In conjunction with any of the above-described kind of possible implementation of first aspect or first aspect, in the 22nd kind of possible implementation of first aspect, described first detection state include following at least one: position, speed, the direction of motion.

For achieving the above object, the second aspect according to the embodiment of the present application, provides a kind of transmission power to determine device, comprising:

Detection module, for detecting, determines the first detection state of described object to an object；

Acquisition module, for obtaining multiple second detection states of the described object that the multiple other nodes in the region that described node is located determine and multiple positions of the plurality of other node；

Determining module, for according at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of node and the position of described node, determining the objective emission power of described node.

In conjunction with second aspect, in the first possible implementation of second aspect, described determining module includes:

First submodule, for according at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of node and the position of described node, determining many performance parameters under multiple available launch power for the described node；

Second submodule, for the performance requirement according at least to many performance parameters under multiple available launch power for the described node and described node, determines described objective emission power.

Any of the above-described kind of possible implementation in conjunction with second aspect or second aspect, in the possible implementation of the second of second aspect, with the position of described node closer to the second detection state of determining of other nodes detect that the impact to performance parameter of the state difference of state is bigger with described first.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the third possible implementation of second aspect, described performance parameter is parameter of consistency, and described performance requirement includes: the higher limit of parameter of consistency.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 4th kind of possible implementation of second aspect, described first submodule includes:

First module, for according to the plurality of other multiple positions of node and the position of described node, determining multiple distances of the plurality of other node and described node；

Second unit, for for each available launch power in the plurality of available launch power, according at least to the plurality of distance, determines at least one other node corresponding with described available launch power in the plurality of other node；

Unit the 3rd, for detecting at least one distance of state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine parameter of consistency under described available launch power for the described node.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 5th kind of possible implementation of second aspect, described Unit the 3rd specifically for:

At least one second detection state, at least one distance of described at least one other node and the uniformity distance coefficient determining according at least to the described first detection state, described at least one other node, determines parameter of consistency under described available launch power for the described node.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 6th kind of possible implementation of second aspect, described uniformity distance coefficient is relevant with the intended application of described node.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 7th kind of possible implementation of second aspect, described second submodule specifically for:

Determine that described objective emission power is the available launch power that in the plurality of available launch power, corresponding parameter of consistency is not higher than described higher limit and maximum.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 8th kind of possible implementation of second aspect, described higher limit is relevant with the intended application of described node.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 9th kind of possible implementation of second aspect, described performance parameter is communication net benefits, and described performance requirement is to require the net benefits highest that communicates.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the tenth kind of possible implementation of second aspect, described first submodule includes:

First module, for according to the plurality of other multiple positions of node and the position of described node, determining multiple distances of the plurality of other node and described node；

Second unit, for for each available launch power in the plurality of available launch power, according at least to the plurality of distance, determines at least one other node corresponding with described available launch power in the plurality of other node；

Unit the 4th, for detecting at least one distance of state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine communication net benefits under described available launch power for the described node.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in a kind of the tenth possible implementation of second aspect, described Unit the 4th includes:

First subelement, for detecting at least one distance of state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine communication benefit under described available launch power for the described node；

Second subelement, for determining the corresponding communication overhead of described available launch power；

3rd subelement, for determining the difference that described node is communication benefit under described available launch power for described node communication overhead corresponding with described available launch power in the communication net benefits under described available launch power.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 12nd kind of possible implementation of second aspect, described first subelement specifically for:

At least one second detection state, at least one distance of described at least one other node and the benefit coefficient of described node determining according at least to the described first detection state, described at least one other node, determines communication benefit under described available launch power for the described node.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 13rd kind of possible implementation of second aspect, described benefit coefficient is relevant with the intended application of described node.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 14th kind of possible implementation of second aspect, described first subelement specifically for:

According at least to described first at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node, determine parameter of consistency under described available launch power for the described node；

According at least to parameter of consistency under described available launch power for the described node, determine communication benefit under described available launch power for the described node.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 15th kind of possible implementation of second aspect, described second submodule specifically for:

Determine that described objective emission power is corresponding communication net benefits highest available launch power in the plurality of available launch power.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 16th kind of possible implementation of second aspect, described detection module specifically for:

It is activated in response to the described intended application on described node, an object is detected, determine the first detection state of described object.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 17th kind of possible implementation of second aspect, described acquisition module specifically for:

Asked for the detection of described object with maximum transmission power broadcast；

The plurality of second detection state and multiple positions of the plurality of other node that reception the plurality of other node each returns.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 18th kind of possible implementation of second aspect, described acquisition module specifically for:

Subscribe to the status information of all other node in described region to a server；

Receive multiple second detection states of described object of the plurality of other nodes determination of described server return and multiple positions of the plurality of other node.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 19th kind of possible implementation of second aspect, described device also includes: setup module, for the transmission power of described node is set to described objective emission power.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 20th kind of possible implementation of second aspect, described node and the plurality of other node are respectively positioned in car networking.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in a kind of the 20th possible implementation of second aspect, described region is centered on the position of described node.

In conjunction with any of the above-described kind of possible implementation of second aspect or second aspect, in the 22nd kind of possible implementation of second aspect, described first detection state include following at least one: position, speed, the direction of motion.

For achieving the above object, the third aspect according to the embodiment of the present application, provides a kind of mobile unit, comprising:

Detection module, for detecting, determines the first detection state of described object to an object；

Memory, for store instruction；

Processor, for executing the instruction of described memory storage, described instruction makes below described computing device operate:

Obtain multiple second detection states of described object and the multiple positions of the plurality of miscellaneous equipment that the multiple miscellaneous equipments in the region that described mobile unit is located determine；

According at least to the position of the described first detection state, the plurality of second detection state, multiple positions of the plurality of miscellaneous equipment and described mobile unit, determine the objective emission power of described mobile unit.

In conjunction with the third aspect, in the first possible implementation of the third aspect, described mobile unit also includes: transmitter；

Described instruction makes described processor also execute following operation: the transmission power of described transmitter is set to described objective emission power.

In conjunction with any of the above-described kind of possible implementation of the third aspect or the third aspect, in the possible implementation of the second of the third aspect, described mobile unit also includes: positioning module, for detecting the position of described mobile unit.

At least one of multiple technical schemes technical scheme has the advantages that above

The embodiment of the present application is by carrying out to an object detecting the first detection state determining described object, obtain multiple positions of multiple second detection states of described object that the multiple other nodes in the region that described node is located determine and the plurality of other node, determine the objective emission power of described node according at least to described first detection state, the plurality of second detection state, the plurality of other multiple positions of node and the position of described node, there is provided a kind of scheme of determination transmission power.

Brief description

Fig. 1 determines the schematic flow sheet of embodiment of the method for a kind of transmission power that the application provides；

Fig. 2 determines the structural representation of device embodiment for a kind of transmission power that the application provides；

Fig. 3 a～3e is respectively a kind of structural representation of implementation of embodiment illustrated in fig. 2；

A kind of structural representation of car-mounted terminal embodiment that Fig. 4 provides for the application；

Fig. 5 a～5c is respectively a kind of structural representation of implementation of embodiment illustrated in fig. 4.

Specific embodiment

With reference to the accompanying drawings and examples, the specific embodiment of the application is described in further detail.Following examples are used for the present invention is described, but are not limited to the scope of the present invention.

Fig. 1 determines the schematic flow sheet of embodiment of the method for a kind of transmission power that the application provides.As shown in figure 1, the present embodiment includes:

110th, a node detects to an object, determines the first detection state of described object.

In the present embodiment, described node all can be located in a communication network with the arbitrary other node in following the plurality of other nodes in the form of software and/or hardware, and described communication network is specially Internet of Things, is optionally car networking.Correspondingly, described communication network be car networking scene in, described node including but not limited to following any one: mobile unit, road equipment.

In the present embodiment, described object can be any object.Specifically, described object can be an entity, or, multiple entities.Taking the scene of car networking as a example, described object can be a car, a barrier, or, many cars, etc..

In the present embodiment, described first detection state is the state of the described object that described nodal test arrives, and " first " is merely to distinguish the main body of detection.Taking the scene of car networking as a example, described first detection state including but not limited to following at least one: position, speed, the direction of motion；Further, if described object includes multiple entities, described first detection state alternatively includes the position of each entity, speed, the direction of motion in the plurality of entity.

120th, described node obtains multiple second detection states of the described object that the multiple other nodes in the region that described node is located determine and multiple positions of the plurality of other node.

In the present embodiment, the plurality of second detection state and the plurality of other node correspond, and specifically, each second detection state is obtained by corresponding other nodal test.In addition, the content of each the second detection state is mated with the content of the described first detection state, such as, described first detection state includes primary importance and the First Speed of described object, arbitrary second detection state correspondingly includes the second place and the second speed of described object, and, each second detection state detection time to described object corresponding with described first detection state is same or like, such as, each second detection state is less than 1 minute with the difference of the described first detection corresponding detection time to described object of state.

In the present embodiment, the plurality of position is corresponded with the plurality of other node, and specifically, in the plurality of other node, each other node all has the position of oneself.

In the present embodiment, described region alternatively centered on the position of described node, or, approx centered on the position of described node.For example, described region is centered on the position of described node, (as 200 meters) border circular areas as radius at a certain distance.

It should be noted that, described node determines that the step of described first detection state and described node obtain no certain ordinal relation between the plurality of second detection state and the step of the plurality of position, be this two steps execution sequence can be carried out either step formerly, execute another step rear, or, execute this two steps simultaneously, such as, execute another step during execution either step.

130th, according at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of node and the position of described node, determine the objective emission power of described node.

In the present embodiment, the position of described node can be obtained by described node itself detection, or, obtain from server.

The present embodiment is by carrying out to an object detecting the first detection state determining described object, obtain multiple positions of multiple second detection states of described object that the multiple other nodes in the region that described node is located determine and the plurality of other node, determine the objective emission power of described node according at least to described first detection state, the plurality of second detection state, the plurality of other multiple positions of node and the position of described node, there is provided a kind of scheme of determination transmission power.

The method being further described through the present embodiment below by way of some optional implementations.

In the present embodiment, 130 have multiple implementations.

In a kind of optional implementation, described according at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of the node and position of described node, determine the objective emission power of described node, comprising:

According at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of node and the position of described node, determine many performance parameters under multiple available launch power for the described node；

According at least to the performance requirement of many performance parameters under multiple available launch power for the described node and described node, determine described objective emission power.

Wherein, the plurality of available launch power is the available multiple transmission powers of described node.

Wherein, the plurality of performance parameter and the plurality of available launch power correspond, and specifically, every performance parameter is performance parameter under a corresponding available launch power for the described node.

Wherein, determining described node during the performance parameter under each available launch power, alternatively, with the position of described node closer to the second detection state of determining of other nodes detect that the impact to performance parameter of the state difference of state is bigger with described first.Specifically, the present application finds during realizing the present invention: multi-agent system, as multi-robot system, many autonomous vehicle systems, when executing collaborative task (as collaborative trajectory planning), an important premise is had to be exactly the perception that multiple agent needs to have consistent external environment state, such as two cars need there is identical location aware to the position of preceding object vehicle, cooperating type trajectory planning and avoidance just can be carried out, but the measure error due to respective sensor and signal transmission delay and packet loss etc., 100% uniformity is extremely difficult to.In addition, wanting that the uniformity reaching 100% needs very big resource overhead, but actually conforming demand is to rely on the performance requirement of collaborative task, and a lot of tasks are not required for all of intelligent body has 100% uniformity to perceive.For example, one car is more desirable to keep higher uniformity near neighbours' vehicle, and it is not required for very high uniformity with the remote vehicle of some it might even be possible to ignore the uniformity of some vehicles remote enough with its distance, because the uniformity between them has no effect to the execution of collaborative task.Based on above-mentioned discovery, this implementation takes such principle when determining performance parameter, i.e. with the position of described node closer to the second detection state of determining of other nodes and described first detection state the impact to performance parameter for the state difference bigger so that can while ensureing performance not waste of resource.

In this implementation, described performance parameter has multiple possibility, and correspondingly, described performance requirement also has multiple possibility.

In a kind of possible scene, described performance parameter is parameter of consistency, and described performance requirement includes: the higher limit of parameter of consistency.Wherein, described parameter of consistency characterizes conforming degree, and, the better parameter of consistency of uniformity is less.

In this scene, alternatively, described according at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of the node and position of described node, determine many performance parameters under multiple available launch power for the described node, comprising:

According to the plurality of other multiple positions of node and the position of described node, determine multiple distances of the plurality of other node and described node；

For each available launch power in the plurality of available launch power, according at least to the plurality of distance, determine at least one other node corresponding with described available launch power in the plurality of other node；According at least to described first at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node, determine parameter of consistency under described available launch power for the described node.

Wherein, the plurality of distance and the plurality of other node correspond, and specifically, there is a distance between each other nodes and the described node in the plurality of other node.

Wherein, at least one other node corresponding with described available launch power refers to, described node can receive at least one other node of this information when sending information with described available launch power.Generally, the corresponding at least one other node of larger available launch power generally covers the corresponding at least one other node of less available launch power, and correspondingly, the quantity of the corresponding at least one other node of bigger available launch power is more.

Wherein, described at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine parameter of consistency under described available launch power for the described node, can have multiple implementations.Alternatively, described at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine parameter of consistency under described available launch power for the described node, including: at least one second detection state, at least one distance of described at least one other node and the uniformity distance coefficient determining according at least to the described first detection state, described at least one other node, determine parameter of consistency under described available launch power for the described node.

Determine shown in a kind of possible algorithm such as formula (1)～(4) of described parameter of consistency.

${\mathrm{\μ}}_{ij}\left(t\right)=e^{-\mathrm{\δ}\×d_{ij}^2\left(t\right)}---\left(2\right)$

$\dim \left(x_{ik}\left(t\right)-x_{jk}\left(t\right)\right)=\frac{x_{ik}\left(t\right)-x_{jk}\left(t\right)}{\max \left\{x_{lk}\right\}-\min \left\{x_{lk}\right\}},l=1,2,\mathrm{...},n,k=0,1,\mathrm{...},m---\left(4\right)$

Wherein, x_iT () represents t node v_iThe detection state (i.e. described first detection state in the present embodiment) of the described object that (i.e. described node in the present embodiment) detection obtains is it is assumed that x_iT () comprises m sub- status information, correspondingly, by x_iT () is defined as the row vector of a m dimension, be expressed as x_i(t)=[x_i1(t),x_i2(t),...,x_im(t)], wherein, x_ik(t), k=1,2 ..., m is t node v_iDetect the k-th sub- status information obtaining.It is based on x_iT node v that () obtains_iParameter of consistency in t.N is node number, the node number that is, node described in the present embodiment is added up with described at least one other node.For t node v_iWith node v_jThe state difference of the detection state of (i.e. one of the present embodiment other node), μ_ijT () is the weight coefficient of this state difference.d_ijT () is node v_iWith node v_jDistance in t.dim(x_i(t)-x_j(t)) it is the row vector that a m ties up, dim (x_ik(t)-x_jk(t)) represent the value of k-th element in this row vector, | | dim (x_i(t)-x_j(t))||₂Value be equal to row vector dim (x_i(t)-x_j(t)) in each element value square root sum square.Because in each detection state, each sub- status information may be the numerical value of different dimension, in order to eliminate the impact of different dimension, it is easy to different sub- status informations is weighted comparing it can be seen that having carried out nondimensionalization when two sub- status informations being made the difference in formula (4).

Wherein, δ is uniformity distance coefficient, determines the impact of the weight to the state difference between the detection state of two nodes for the distance between two nodes, it is optionally a constant or variable.When described uniformity distance coefficient is a variable, it is alternatively relevant with the intended application of described node, that is, for different intended application, described uniformity distance coefficient may be different, generally, when intended application is higher to conforming requirement, described uniformity distance coefficient is bigger.Correspondingly, a described node detects to an object, determines the first detection state of described object, comprising: be activated in response to the described intended application on described node, described node detects to an object, determines the first detection state of described object.

Wherein, described intended application refers to application corresponding to described objective emission power that is to say, that should adopt described objective emission power in communication theory related with described intended application on described node as transmission power.Alternatively, when starting an application on described node, using this application as intended application, the method executing the present embodiment.

It should be noted that when determining described parameter of consistency according to above-mentioned algorithm, alternatively, being first calculated μ according to formula (2)_ij(t), and be calculated according to formula (3), (4)Again by above-mentioned calculated μ_ij(t)、Substitute into formula (1) and obtain described parameter of consistency, or, directly it is calculated described parameter of consistency according to by the aggregative formula obtaining formula (2)～(4) substitution formula (1).

Determine shown in another possible algorithm such as formula (5)～(9) of described parameter of consistency.

$\stackrel{\&overbar;}{{\mathrm{\μ}}_{ij}\left(t\right)}=e^{-\mathrm{\δ}\×{\left(\stackrel{\&overbar;}{d_{ij}\left(t\right)}\right)}^2}---\left(6\right)$

$\stackrel{\&overbar;}{d_{ij}\left(t\right)}=\frac{1}{n-1}\underset{j=1,j\&notequal;i}{\overset{n}{\σ}}{d}_{ij}\left(t\right)---\left(7\right)$

$\dim \left(x_{ik}\left(t\right)-\stackrel{\&overbar;}{x_{jk}\left(t\right)}\right)=\frac{x_{ik}\left(t\right)-\frac{1}{n-1}\underset{j=1,j\&notequal;i}{\overset{n}{\σ}}{x}_{jk}\left(t\right)}{\max \left\{x_{lk}\right\}-\min \left\{x_{lk}\right\}},l=1,2,\mathrm{...},n,k=0,1,\mathrm{...},m---\left(9\right)$

Wherein,For t node v_iWith all other node v_jThe mean state difference of the detection state of (i.e. described at least one other node in the present embodiment),Average weight coefficient for this mean state difference.For node v_iWith all other node v_jAverage distance in t.The row vector tieed up for a m,Represent the value of k-th element in this row vector,Value be equal to row vectorIn each element value square root sum square.In addition, representing identical implication with identical parameter in formula (1)～(4) in formula (5)～(9).

It should be noted that when determining described parameter of consistency according to above-mentioned algorithm, alternatively, being first calculated according to formula (6), (7)And be calculated according to formula (8), (9)Again will be above-mentioned calculatedSubstitute into formula (5) and obtain described parameter of consistency, or, directly substitute into, according to by by formula (6)～(9), the aggregative formula described parameter of consistency of calculating that formula (5) obtains.In addition, x in above-mentioned formula (3)_i(t) and x_jT the value of the independent variable t of () is identical, and x in formula (8)_i(t) withThe value of independent variable t be identical it is meant that the detection time of the detection state of used each node is identical in determining described parameter of consistency；As another kind of optional mode, in determining described parameter of consistency, the detection time of the detection state of used each node there may be certain difference, correspondingly, by the x in above-mentioned formula (3)_jT () replaces with x_j(t'), in formula (8)Replace withThe value of t and t' there may be certain difference, and the difference of such as value, within 1 minute, is equivalent to node v when determining described parameter of consistency taking the formula (3) after replacement as a example_iThe the first detection state obtaining for an object detection in t and node v_jThe t' moment be directed to described object detection to the second detection state be compared, t' (t-1 minute) arrive (t+1 minute) in the range of, further, for different other node v_i, the value of t' is likely to different.

It can further be stated that, above two algorithm is satisfied by: the impact to parameter of consistency for the state difference of the second detection state that less with the distance of described node other nodes determine and the described first detection state is bigger, that is, with the position of described node closer to other nodes determine second detect with described first, state detects that the impact to performance parameter of the state difference of state is bigger.

In this scene, alternatively, the performance requirement of described many performance parameters according at least to described node under multiple available launch power and described node, determines described objective emission power, comprising:

Determine that described objective emission power is the available launch power that in the plurality of available launch power, corresponding parameter of consistency is not higher than described higher limit and maximum.

Specifically, when the number of the available launch power of described node is more, alternatively, determine each available launch power accordingly parameter of consistency in the plurality of available launch power in a certain order, it is possible to further to accelerate to determine the speed of described objective emission power with reference to the characteristic of the algorithm of above-mentioned calculating parameter of consistency.As a example algorithm shown in by formula (1)～(4), when the corresponding parameter of consistency of each available launch power is calculated using this algorithm, parameter of consistency generally with the increase of available launch power and monotone decreasing, correspondingly, after often calculating the corresponding parameter of consistency of available launch power, the magnitude relationship of at least one parameter of consistency having obtained and described higher limit can be combined based on this characteristic, and the size of this at least one parameter of consistency at least one available launch power corresponding, to choose next available launch power, and calculate the corresponding parameter of consistency of this next available launch power, such as, calculating available launch power p₁Corresponding parameter of consistency ω₁Afterwards, if ω₁More than described higher limit ω_max, then choose one and compare p₁Big available launch power p₂, calculate corresponding parameter of consistency ω₂If, ω₂＜ ω_max＜ ω₁, then choose one and compare p₁Big and compare p₂Little available launch power, calculates its corresponding parameter of consistency.

In this scene, alternatively, described higher limit is relevant with the intended application of described node.That is, for different intended application, described higher limit may be different, generally, when intended application is higher to conforming requirement, described higher limit is less.Correspondingly, a described node detects to an object, determines the first detection state of described object, comprising: be activated in response to the described intended application on described node, described node detects to an object, determines the first detection state of described object.

Wherein, described intended application refers to application corresponding to described objective emission power that is to say, that should adopt described objective emission power in communication theory related with described intended application on described node as transmission power.Alternatively, when starting an application on described node, using this application as intended application, the method executing the present embodiment.

It should be noted that in this scene, the bigger parameter of consistency of state difference is bigger, i.e. the poorer parameter of consistency of uniformity is bigger.Certainly, another kind of parameter of consistency defined in other scenes of the present embodiment, make state difference this another kind of parameter of consistency bigger less, i.e., the better parameter of consistency of uniformity is bigger, described in this other scene, performance requirement includes the lower limit of described parameter of consistency, correspondingly, determines that described objective emission power is the available launch power that in the plurality of available launch power, corresponding parameter of consistency is not less than described lower limit and minimum.

In another possible scene, described performance parameter is communication net benefits, and described performance requirement is to require the net benefits highest that communicates.

In this scene, alternatively, described according at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of the node and position of described node, determine many performance parameters under multiple available launch power for the described node, comprising:

According to the plurality of other multiple positions of node and the position of described node, determine multiple distances of the plurality of other node and described node；

For each available launch power in the plurality of available launch power, according at least to the plurality of distance, determine at least one other node corresponding with described available launch power in the plurality of other node；According at least to described first at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node, determine communication net benefits under described available launch power for the described node.

Wherein, the plurality of distance and the plurality of other node correspond, and specifically, there is a distance between each other nodes and the described node in the plurality of other node.

Wherein, at least one other node corresponding with described available launch power refers to, described node can receive at least one other node of this information when sending information with described available launch power.Generally, the corresponding at least one other node of larger available launch power generally covers the corresponding at least one other node of less available launch power, and correspondingly, the quantity of the corresponding at least one other node of bigger available launch power is more.

Wherein, described at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine communication net benefits under described available launch power for the described node, have multiple implementations.

Alternatively, described at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine communication net benefits under described available launch power for the described node, comprising:

According at least to described first at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node, determine communication benefit under described available launch power for the described node；

Determine the corresponding communication overhead of described available launch power；

Determine the difference that described node is communication benefit under described available launch power for described node communication overhead corresponding with described available launch power in the communication net benefits under described available launch power.

Wherein, the described determination corresponding communication overhead of described available launch power, has multiple implementations.Optionally it is determined that shown in a kind of possible algorithm such as formula (10) of the corresponding communication overhead of described available launch power.

$c\left(p_i\left(t\right)\right)=1-e^{-\mathrm{\φ}\×p_i\left(t\right)}---\left(10\right)$

Wherein, φ represents the degree of lying in communication overhead for the user, and user more lies in communication overhead, and φ is bigger, otherwise φ is less.p_iT () represents t node v_iTransmission power, i.e. described available launch power.c(p_i(t)) represent node v_iIt is p in transmission power_iCommunication overhead when (t).

Wherein, the difference that the described node of above-mentioned determination is communication benefit under described available launch power for described node communication overhead corresponding with described available launch power in the communication net benefits under described available launch power, is represented by formula (11).

nu(p_i(t))=u (p_i(t))-c(p_i(t)) (11)

Wherein, nu (p_i(t)) represent node v_iIt is p in transmission power_iCommunication net benefits when (t), u (p_i(t)) represent node v_iIt is p in transmission power_iCommunication benefit when (t).

Wherein, described at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine communication benefit under described available launch power for the described node, have multiple implementations.

Alternatively, described at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine communication benefit under described available launch power for the described node, comprising:

At least one second detection state, at least one distance of described at least one other node and the benefit coefficient of described node determining according at least to the described first detection state, described at least one other node, determines communication benefit under described available launch power for the described node.

Wherein, described benefit coefficient determines described first detection state, described at least one other at least one second detection state of node determination, the size of the impact to described communication benefit at least one distance of described at least one other node, and it is optionally a constant or variable.When described benefit coefficient is a variable, it is alternatively relevant with the intended application of described node, i.e. for different intended application, and described benefit coefficient may be different, and generally, when intended application is higher to conforming requirement, described benefit coefficient is bigger.Correspondingly, a described node detects to an object, determines the first detection state of described object, comprising: be activated in response to the described intended application on described node, described node detects to an object, determines the first detection state of described object.

Wherein, described intended application refers to application corresponding to described objective emission power that is to say, that should adopt described objective emission power in communication theory related with described intended application on described node as transmission power.Alternatively, when starting an application on described node, using this application as intended application, the method executing the present embodiment.

Alternatively, described at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine communication benefit under described available launch power for the described node, comprising:

According at least to described first at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node, determine parameter of consistency under described available launch power for the described node；

According at least to parameter of consistency under described available launch power for the described node, determine communication benefit under described available launch power for the described node.

Wherein, described at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine parameter of consistency under described available launch power for the described node, there are multiple implementations, be specifically referred to the corresponding description in a scene.It should be noted that, determine that each algorithm of described parameter of consistency is satisfied by: the impact to parameter of consistency is bigger with the state difference of the described first detection state for the second detection state of the other nodes determinations less with the distance of described node, correspondingly, impact to communication net benefits is bigger, that is, with the position of described node closer to the second detection state of determining of other nodes detect that the impact to performance parameter of the state difference of state is bigger with described first.

Wherein, the described parameter of consistency according at least to described node under described available launch power, determines communication benefit under described available launch power for the described node, has multiple implementations, optionally it is determined that shown in a kind of possible algorithm such as formula (12) of described communication benefit.

$u\left({\mathrm{\ω}}_{x_i\left(t\right)}\right)=e^{-\mathrm{\λ}\×{\left({\mathrm{\ω}}_{x_i\left(t\right)}\right)}^2}---\left(12\right)$

Wherein, λ is described benefit coefficient, it should be noted that when λ value is 1, not considering described benefit coefficient when being equivalent to determination described communication benefit.Represent node v_iIt is p in transmission power_iConsistency coefficient under (t).Represent according to parameter of consistencyThe communication benefit determining, is equivalent to the u (p in formula (11)_i(t)).In addition, above-mentioned algorithm is parameter of consistency, bigger communication benefit is less, and this is based on, and the bigger parameter of consistency of state difference in the algorithm determining described parameter of consistency is bigger, and that is, the poorer parameter of consistency of uniformity is bigger, design；Certainly, if the bigger parameter of consistency of state difference is less in the algorithm determining described parameter of consistency, then the present embodiment can also be not construed as limiting to this using the less other algorithms of parameter of consistency less communication benefit during determine communication benefit according to parameter of consistency.

It should be noted that when determining described communication net benefits according to above-mentioned algorithm, alternatively, being first calculated according to formula (12)And it is calculated c (p according to formula (10)_i(t)), then will be above-mentioned calculatedc(p_i(t)) substitute into formula (11) obtain described communication net benefits, or, directly according to by by formula (10), (12) substitute into formula (11) obtain one aggregative formula calculate described communication net benefits.

In this scene, alternatively, the performance requirement of described many performance parameters according at least to described node under multiple available launch power and described node, determines described objective emission power, comprising:

Determine that described objective emission power is corresponding communication net benefits highest available launch power in the plurality of available launch power.

Specifically, when the number of the available launch power of described node is more, alternatively, determine each available launch power corresponding communication net benefits in the plurality of available launch power in a certain order, it is possible to further to accelerate to determine the speed of described objective emission power with reference to the characteristic of the algorithm of above-mentioned calculating communication net benefits.Combined as a example the algorithm shown in formula (10)～(12) by formula (1)～(4)，When each available launch power corresponding communication benefit is calculated using this algorithm，Communication benefit increases with the increase of available launch power，And communication overhead increases also with the increase of available launch power，But，After available launch power exceedes certain value，Communication overhead will exceed communication benefit with pushing the speed that available launch power increases with pushing the speed of increasing of available launch power，Therefore，One peak value of presence in the curve that communication net benefits change with available launch power，Correspondingly，After often calculating an available launch power corresponding communication net benefits，The magnitude relationship between at least one the communication net benefits having obtained can be combined based on this characteristic，And the size of this at least one communication net benefits at least one available launch power corresponding，Net benefits corresponding may communicate to choose closer to the next available launch power of described peak value，And calculate the corresponding communication net benefits of this next available launch power.

In the present embodiment, 120 have multiple implementations.

In a kind of optional implementation, described node obtains multiple second detection states of the described object that the multiple other nodes in the region that described node is located determine and multiple positions of the plurality of other node, comprising:

Described node is asked for the detection of described object with maximum transmission power broadcast；

The plurality of second detection state and multiple positions of the plurality of other node that reception the plurality of other node each returns.

In this implementation, described region is or is approximately the border circular areas centered on the position of described node, with the corresponding communication distance of described maximum transmission power as radius.

Wherein, described maximum transmission power is of the maximum in multiple available launch power of described node.

Wherein, described detection request alternatively carries specified detection time, and described detection is asked for asking each other node that in described specified detection time, described object is detected, with correspondingly, the detection in 110 is also to carry out in described specified detection time.

Wherein, each the other node in the plurality of other node return and oneself described object are carried out detecting the second detection state of described object determining and the position of oneself.

In a kind of possible scene, described node determines that one specifies detection time, such as, at 10 minutes of current time afterwards, carry the detection request of described specified detection time with maximum transmission power broadcast, and execute 110 in described specified detection time, receive multiple positions of the plurality of second detection state that the plurality of other node each returns and the plurality of other node after described specified detection time successively.Further, delay in view of communication, a time delay can be set for receiving, such as, only receive multiple positions of the plurality of second detection state that the plurality of other node each returns and the plurality of other node in 1 minute after specified detection time, exceed the direct discarding that this time delay receives.

In another optional implementation, described node obtains multiple second detection states of the described object that the multiple other nodes in the region that described node is located determine and multiple positions of the plurality of other node, comprising:

Described node subscribes to the status information of all other node in described region to a server；

Receive multiple positions of multiple second detection states of described object that the plurality of other nodes in the described region that described server returns determine and the plurality of other node.

Wherein, described subscription is alternatively the detection for described object, i.e., described node subscribes to, to described server, the status information that in a region, all other node obtains for described object detection, correspondingly, described server only can return the plurality of second detection state and multiple positions of the plurality of other node to described node.Or, described subscription is alternatively not for special object, such as, described node subscribes to all status informations of all other node in a region to described server, correspondingly, described server can return all status informations of all other node in this region to described node, and described node extracts the plurality of second detection state and multiple positions of the plurality of other node again from these status informations.

In the present embodiment, the described objective emission power determining in 130 is typically set or adjusted the target of the transmission power of described node.Alternatively, the present embodiment also includes: the transmission power of described node is set to described objective emission power by described node.

Fig. 2 determines the structural representation of device embodiment for a kind of transmission power that the application provides.The transmission power of the present embodiment determines that device (hereinafter referred to as: device) 200 is arranged in a node, as shown in Fig. 2 device 200 includes:

Detection module 21, for detecting, determines the first detection state of described object to an object；

Acquisition module 22, for obtaining multiple second detection states of the described object that the multiple other nodes in the region that described node is located determine and multiple positions of the plurality of other node；

Determining module 23, for according at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of node and the position of described node, determining the objective emission power of described node.

In the present embodiment, described node all can be located in a communication network with the arbitrary other node in the plurality of other node in the form of software and/or hardware, and described communication network is specially Internet of Things, is optionally car networking.Correspondingly, described communication network be car networking scene in, described node including but not limited to following any one: mobile unit, road equipment.

In the present embodiment, described object can be any object.Specifically, described object can be an entity, or, multiple entities.Taking the scene of car networking as a example, described object can be a car, a barrier, or, many cars, etc..

In the present embodiment, the state of the described object that described first detection state detects for device 200, " first " is merely to distinguish the main body of detection.Taking the scene of car networking as a example, described first detection state including but not limited to following at least one: position, speed, the direction of motion；Further, if described object includes multiple entities, described first detection state alternatively includes the position of each entity, speed, the direction of motion in the plurality of entity.

In the present embodiment, the plurality of second detection state and the plurality of other node correspond, and specifically, each second detection state is obtained by corresponding other nodal test.In addition, the content of each the second detection state is mated with the content of the described first detection state, such as, described first detection state includes primary importance and the First Speed of described object, arbitrary second detection state correspondingly includes the second place and the second speed of described object, and, each second detection state detection time to described object corresponding with described first detection state is same or like, such as, each second detection state is less than 1 minute with the difference of the described first detection corresponding detection time to described object of state.

In the present embodiment, the plurality of position is corresponded with the plurality of other node, and specifically, in the plurality of other node, each other node all has the position of oneself.

In the present embodiment, described region alternatively centered on the position of described node, or, approx centered on the position of described node.For example, described region is centered on the position of described node, (as 200 meters) border circular areas as radius at a certain distance.

In the present embodiment, the position of described node can be obtained by detection module 21 detection, or, the other module detections in described node obtain, or, obtain from server.

The transmission power of the present embodiment determines that device carries out to an object by detection module detecting the first detection state determining described object, acquisition module obtains multiple second detection states of the described object that the multiple other nodes in the region that described node is located determine and multiple positions of the plurality of other node, determining module determines the objective emission power of described node according at least to described first detection state, the plurality of second detection state, the plurality of other multiple positions of node and the position of described node, there is provided a kind of scheme of determination transmission power.

It is further described through the device 200 of the present embodiment below by way of some optional implementations.

In the present embodiment, determining module 23 has multiple implementations.

In a kind of optional implementation, as shown in Figure 3 a, determining module 23 includes:

First submodule 231, for according at least to the described first detection state, the plurality of second detection state, the plurality of other multiple positions of node and the position of described node, determining many performance parameters under multiple available launch power for the described node；

Second submodule 232, for the performance requirement according at least to many performance parameters under multiple available launch power for the described node and described node, determines described objective emission power.

Wherein, determine described node during the performance parameter under each available launch power in the first submodule 231, alternatively, with the position of described node closer to the second detection state of determining of other nodes detect that the impact to performance parameter of the state difference of state is bigger with described first.

In this implementation, described performance parameter has multiple possibility, and correspondingly, described performance requirement also has multiple possibility.

In a kind of possible scene, described performance parameter is parameter of consistency, and described performance requirement includes: the higher limit of parameter of consistency.

In this scene, alternatively, as shown in Figure 3 b, the first submodule 231 includes:

First module 2311, for according to the plurality of other multiple positions of node and the position of described node, determining multiple distances of the plurality of other node and described node；

Second unit 2312, for for each available launch power in the plurality of available launch power, according at least to the plurality of distance, determines at least one other node corresponding with described available launch power in the plurality of other node；

3rd unit 2313, for detecting at least one distance of state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine parameter of consistency under described available launch power for the described node.

Wherein, the 3rd unit 2313 can have multiple implementations.Alternatively, the 3rd unit 2313 specifically for:

At least one second detection state, at least one distance of described at least one other node and the uniformity distance coefficient determining according at least to the described first detection state, described at least one other node, determines parameter of consistency under described available launch power for the described node.

Wherein, described uniformity distance coefficient determines the impact of the weight to the state difference between the detection state of two nodes for the distance between two nodes, and it is optionally a constant or variable.When described uniformity distance coefficient is a variable, it is alternatively relevant with the intended application of described node, that is, for different intended application, described uniformity distance coefficient may be different, generally, when intended application is higher to conforming requirement, described uniformity distance coefficient is bigger.Correspondingly, detection module 21 specifically for: be activated in response to the described intended application on described node, described node detects to an object, determine the first detection state of described object.

In this scene, alternatively, the second submodule 232 specifically for:

Determine that described objective emission power is the available launch power that in the plurality of available launch power, corresponding parameter of consistency is not higher than described higher limit and maximum.

In this scene, alternatively, described higher limit is relevant with the intended application of described node.That is, for different intended application, described higher limit may be different, generally, when intended application is higher to conforming requirement, described higher limit is less.Correspondingly, detection module 21 specifically for: be activated in response to the described intended application on described node, described node detects to an object, determine the first detection state of described object.

In another possible scene, described performance parameter is communication net benefits, and described performance requirement is to require the net benefits highest that communicates.

In this scene, alternatively, as shown in Figure 3 c, the first submodule 231 includes:

First module 2311, for according to the plurality of other multiple positions of node and the position of described node, determining multiple distances of the plurality of other node and described node；

Second unit 2312, for for each available launch power in the plurality of available launch power, according at least to the plurality of distance, determines at least one other node corresponding with described available launch power in the plurality of other node；

4th unit 2314, for detecting at least one distance of state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine communication net benefits under described available launch power for the described node.

Wherein, the 4th unit 2314 has multiple implementations.

Alternatively, as shown in Figure 3 d, the 4th unit 2314 includes:

First subelement 23141, for detecting at least one distance of state, at least one second detection state of described at least one other node determination, described at least one other node according at least to described first, determine communication benefit under described available launch power for the described node；

Second subelement 23142, for determining the corresponding communication overhead of described available launch power；

3rd subelement 23143, for determining the difference that described node is communication benefit under described available launch power for described node communication overhead corresponding with described available launch power in the communication net benefits under described available launch power.

Wherein, the first subelement 23141 has multiple implementations.

Alternatively, the first subelement 23141 specifically for:

At least one second detection state, at least one distance of described at least one other node and the benefit coefficient of described node determining according at least to the described first detection state, described at least one other node, determines communication benefit under described available launch power for the described node.

Wherein, described benefit coefficient determines described first detection state, described at least one other at least one second detection state of node determination, the size of the impact to described communication benefit at least one distance of described at least one other node, and it is optionally a constant or variable.When described benefit coefficient is a variable, it is alternatively relevant with the intended application of described node, i.e. for different intended application, and described benefit coefficient may be different, and generally, when intended application is higher to conforming requirement, described benefit coefficient is bigger.Correspondingly, detection module 21 specifically for: be activated in response to the described intended application on described node, described node detects to an object, determine the first detection state of described object.

Alternatively, the first subelement 23141 specifically for:

According at least to described first at least one distance detecting state, at least one second detection state of described at least one other node determination, described at least one other node, determine parameter of consistency under described available launch power for the described node；

According at least to parameter of consistency under described available launch power for the described node, determine communication benefit under described available launch power for the described node.

Wherein, the first subelement 23141 determines parameter of consistency under described available launch power for the described node, has multiple implementations, is specifically referred to the corresponding description in a scene.

Wherein, the first subelement 23141 determines communication benefit under described available launch power for the described node, also has multiple implementations.

In this scene, alternatively, the second submodule 232 specifically for: determine described objective emission power be the plurality of available launch power in corresponding communication net benefits highest available launch power.

In the present embodiment, acquisition module 22 has multiple implementations.

In a kind of optional implementation, acquisition module 22 specifically for:

Asked for the detection of described object with maximum transmission power broadcast；

The plurality of second detection state and multiple positions of the plurality of other node that reception the plurality of other node each returns.

In another optional implementation, acquisition module 22 specifically for:

Subscribe to the status information of all other node in described region to a server；

Receive multiple second detection states of described object of the plurality of other nodes determination of described server return and multiple positions of the plurality of other node.

In the present embodiment, the described objective emission power that determining module 23 determines typically is set or adjusted the target of the transmission power of described node.Alternatively, as shown in Figure 3 e, device 200 also includes: setup module 24, for the transmission power of described node is set to described objective emission power.

A kind of transmission power that the specific descriptions of each implementation of the present embodiment or scene can refer to the application offer determines the corresponding description in embodiment of the method.

A kind of structural representation of mobile unit embodiment that Fig. 4 provides for the application.As shown in figure 4, mobile unit 400 includes:

Detection module 41, for detecting, determines the first detection state of described object to an object；

Memory 42, for store instruction；

Processor 43, for executing the instruction of described memory storage, described instruction makes below described computing device operate:

Obtain multiple second detection states of described object and the multiple positions of the plurality of miscellaneous equipment that the multiple miscellaneous equipments in the region that described mobile unit 400 is located determine；

According at least to the position of the described first detection state, the plurality of second detection state, multiple positions of the plurality of miscellaneous equipment and described mobile unit, determine the objective emission power of described mobile unit 400.

In the present embodiment, detection module 41 alternatively includes at least one sensor, including but not limited to following at least one: range sensor, imageing sensor, velocity sensor, gyroscope, gravity sensor.

In the present embodiment, memory 42 alternatively includes high speed random access memory (random-access memory, abbreviation ram), alternatively also include nonvolatile memory (non-volatile memory), for example, at least one magnetic disc store.

In the present embodiment, described instruction is alternatively stored in memory 42 in the form of a program.

In the present embodiment, processor 43 is probably a central processing unit (central processing unit, abbreviation cpu), or specific integrated circuit (application specific integrated circuit, abbreviation asic), or be arranged to execute one or more integrated circuits of aforesaid operations.Described instruction makes the aforesaid operations of processor 43 execution be referred to the corresponding description that above-mentioned transmission power determines in embodiment of the method, will not be described here.It should be noted that mobile unit 400 determines the described node of embodiment of the method as above-mentioned transmission power, the plurality of miscellaneous equipment determines the plurality of other node of embodiment of the method as above-mentioned transmission power.

In the present embodiment, the described objective emission power that processor 43 determines typically is set or adjusted the target of the transmission power of mobile unit 400.Alternatively, as shown in Figure 5 a, mobile unit 400 also includes: transmitter 44, and described instruction makes described processor also execute following operation: the transmission power of described transmitter 44 is set to described objective emission power.

In the present embodiment, the position of mobile unit 400 can be obtained by mobile unit 400 itself detection, or, obtain from server.Alternatively, as shown in Figure 5 b, mobile unit 400 also includes: positioning module 45, for detecting the position of described mobile unit.

Wherein, positioning module 45 alternatively includes a global positioning system (global positioning system, abbreviation gps) position indicator.

In a kind of optional implementation, as shown in Figure 5 c, mobile unit 400 also includes: communication interface 46 and communication bus 47.Wherein, communication interface 46 is used for and external equipment, the communication of such as the plurality of miscellaneous equipment, and communication interface 46 includes transmitter 44；Detection module 41, memory 42, processor 43, positioning module 45, communication interface 46 complete mutual communication and control by communication bus 47.

Effective effect of the present embodiment determines the corresponding description in embodiment of the method with reference to a kind of transmission power that the application provides.

Those of ordinary skill in the art, being capable of being implemented in combination in electronic hardware or computer software and electronic hardware it is to be appreciated that combining the unit of each example and the method and step of the embodiments described herein description.These functions to be executed with hardware or software mode actually, the application-specific depending on technical scheme and design constraint.Professional and technical personnel can use different methods to each specific application realize described function, but this realizes it is not considered that beyond the scope of this invention.

If described function realized using in the form of SFU software functional unit and as independent production marketing or use when, can be stored in a computer read/write memory medium.Based on such understanding, partly being embodied in the form of software product of part that technical scheme substantially contributes to original technology in other words or this technical scheme, this computer software product is stored in a storage medium, including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) execution each embodiment methods described of the present invention all or part of step.And aforesaid storage medium includes: u disk, portable hard drive, read-only storage (rom, read-only memory), random access memory (ram, random access memory), magnetic disc or CD etc. are various can be with the medium of store program codes.

Embodiment of above is merely to illustrate the present invention; and not limitation of the present invention; those of ordinary skill about technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes fall within scope of the invention, and the scope of patent protection of the present invention should be defined by the claims.

Claims (10)

1. a kind of transmission power determines method it is characterised in that methods described includes:

One node detects to an object, determines the first detection state of described object；

Multiple other nodes that described node obtains in the region that described node is located determine Multiple second detection states of described object and multiple positions of the plurality of other node；

According at least to the described first detection state, the plurality of second detection state, the plurality of Multiple positions of other nodes and the position of described node, determine the objective emission of described node Power.

2. method according to claim 1 it is characterised in that described according at least to institute State the first detection state, the plurality of second detection state, the plurality of other nodes multiple Position and the position of described node, determine the objective emission power of described node, comprising:

According at least to the described first detection state, the plurality of second detection state, the plurality of Multiple positions of other nodes and the position of described node, determine described node multiple available Many performance parameters under transmission power；

According at least to many performance parameters under multiple available launch power for the described node and institute State the performance requirement of node, determine described objective emission power.

3. method according to claim 2 is it is characterised in that position with described node Put closer to the second detection state of determining of other nodes and described first detection state shape The impact to performance parameter for the state difference is bigger.

4. according to the method in claim 2 or 3 it is characterised in that described performance is joined Number is communication net benefits, and described performance requirement is to require the net benefits highest that communicates；

Described according at least to the described first detection state, the plurality of second detection state, described Multiple other multiple positions of node and the position of described node, determine described node multiple Many performance parameters under available launch power, comprising:

According to the plurality of other multiple positions of node and the position of described node, determine institute State multiple distances of multiple other nodes and described node；

For each available launch power in the plurality of available launch power, according at least to institute State multiple distances, determine the plurality of other node in corresponding with described available launch power extremely A few other node；According at least to the described first detection state, described at least one other section Point determine at least one second detection state, described at least one other node at least one Distance, determines communication net benefits under described available launch power for the described node.

5. method according to claim 4 it is characterised in that described according at least to institute State at least one second detection shape of the first detection state, described at least one other node determination State, at least one distance of described at least one other node, determine described node described can With the communication net benefits under transmission power, comprising:

Determine at least according at least to the described first detection state, described at least one other node One second detection state, at least one distance of described at least one other node, determine institute State communication benefit under described available launch power for the node；

Determine the corresponding communication overhead of described available launch power；

Determine that communication net benefits under described available launch power for the described node is described node The communication corresponding with described available launch power of communication benefit under described available launch power The difference of expense.

6. method according to claim 5 it is characterised in that described according at least to institute State at least one second detection shape of the first detection state, described at least one other node determination State, at least one distance of described at least one other node, determine described node described can With the communication benefit under transmission power, comprising:

Determine at least according at least to the described first detection state, described at least one other node One second detection state, at least one distance of described at least one other node, determine institute State parameter of consistency under described available launch power for the node；

According at least to parameter of consistency under described available launch power for the described node, determine institute State communication benefit under described available launch power for the node.

7. method according to claim 6 it is characterised in that described according at least to institute State at least one second detection shape of the first detection state, described at least one other node determination State, at least one distance of described at least one other node, determine described node described can With the parameter of consistency under transmission power, comprising:

Determine at least according at least to the described first detection state, described at least one other node One second detection state, at least one distance of described at least one other node and consistent Property distance coefficient, determines parameter of consistency under described available launch power for the described node.

8. method according to claim 7 is it is characterised in that described uniformity distance Coefficient is relevant with the intended application of described node；

A described node detects to an object, determines the first detection state of described object, Including: it is activated in response to the described intended application on described node, described node is to an object Detected, determined the first detection state of described object.

9. a kind of transmission power determines device, is arranged in a node it is characterised in that institute State device to include:

Detection module, for detecting, determines the first detection shape of described object to an object State；

Acquisition module, true for obtaining the multiple other nodes in the region that described node is located Multiple second detection states of fixed described object and multiple positions of the plurality of other node；

Determining module, for according at least to the described first detection state, the plurality of second detection State, the plurality of other multiple positions of node and the position of described node, determine described The objective emission power of node.

10. a kind of mobile unit is it is characterised in that described mobile unit includes:

Detection module, for detecting, determines the first detection shape of described object to an object State；

Memory, for store instruction；

Processor, for executing the instruction of described memory storage, described instruction makes described place Reason device execution is following to be operated:

Obtain that the multiple miscellaneous equipments in the region that described mobile unit is located determine is described Multiple second detection states of object and multiple positions of the plurality of miscellaneous equipment；

According at least to the described first detection state, the plurality of second detection state, the plurality of Multiple positions of miscellaneous equipment and the position of described mobile unit, determine described mobile unit Objective emission power.